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Add or delete the IP address segments that access to the phone.
Set initial IP address in the Start IP column, Set end IP address in the End IP column, and
click Add to add this IP segment. You can also click Delete to delete the selected IP
segment.
MMI Filter
Select it or not to enable or disable MMI Filter. Click Apply to make it
effective.
Notice: Do not set your visiting IP outside the MMI filter range, otherwise, you can not logon
through the web.
4.3.6.2. Firewall
Firewall Configuration
In this web interface, you can set up firewall to prevent unauthorized Internet users from
accessing private networks connected to the Internet (input rule), or prevent unauthorized
private network devices from accessing the Internet (output rule).
Firewall supports two types of rules: input_access rule and output_access rule. Each type
supports at most 10 items.
Through this web page, you could set up and enable/disable firewall with input/output
rules. System could prevent unauthorized access, or access other networks set in rules for
security. Firewall, is also called access list, is a simple implementation of a Cisco-like
access list (firewall). It supports two access lists: one for filtering input packets, and the
other for filtering output packets. Each kind of list could be added 10 items.
We will give you an instance for your reference.
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